Debt Debt (Tables)

12 Months Ended

Dec. 31, 2012

The components of our borrowings are as follows:



	December 31, 2012		December 31, 2011
	(in thousands)
Credit Facilities
USD denominated term loan	$	277,500	$	292,502
Multicurrency revolving line of credit	140,000		160,000
Total debt	417,500		452,502
Less: Current portion of debt	18,750		15,000
Long-term debt	$	398,750	$	437,502

Required minimum principal payments on our outstanding credit facilities are as follows:



	Minimum Payments
	(in thousands)
2013	$	18,750
2014	26,250
2015	30,000
2016	342,500
2017	—
Total minimum payments on debt	$	417,500

Total credit facility repayments were as follows:



	Year Ended December 31,
	2012		2011		2010
	(in thousands)
2011 credit facility term loan	$	15,002	$	7,500	$	—
2011 credit facility multicurrency revolving line of credit⁽¹⁾	100,000		40,000		—
2007 credit facility term loans	—		406,950		155,163
2007 credit facility revolving line of credit⁽²⁾	—		170,000		—
Total credit facility repayments	$	115,002	$	624,450	$	155,163

⁽¹⁾ We borrowed $80.0 million under the multicurrency revolving line of credit during 2012.

⁽²⁾See repayment of the convertible senior subordinated notes below.

At December 31, 2012 and 2011, unamortized prepaid debt fees were as follows:



	December 31, 2012		December 31, 2011
	(in thousands)
Unamortized prepaid debt fees	$	5,367	$	6,027

The interest expense relating to both the contractual interest coupon and amortization of the discount on the liability component is as follows:



	Year Ended December 31,
	2012		2011		2010
	(in thousands)
Contractual interest coupon	$	—	$	3,420	$	5,590
Amortization of the discount on the liability component	—		5,336		10,099
Total interest expense on convertible notes	$	—	$	8,756	$	15,689